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金属学报  1998 

磁记录Fe,Co,Ni纳米晶体的熔化温度

, PP. 870-874

Keywords: 磁记录纳米粒子,粒子半径,熔化熵,熔化温度

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Abstract:

本文提出了一个无自由参数的晶体熔化温度随尺寸变化的模型.模型指出纳米金属晶体的熔化温度随着纳米晶的尺寸的减小而降低.当纳米尺寸达到其最小值时,熔化温度达到最低并伴随着熔化熵的消失.该模型对In,Pb纳米粒子和铁薄膜的熔化温度的理论预测与实验结果一致.在此基础上,预测了Fe,Co和Ni等纳米粒子磁记录材料的熔化温度

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